'aid ratings' is missing, and is referred to in at least two other articles (aid climbing and class 6)

proposed changes...

belay(v)... ditch the 'preventing rope from from being paid out if the climber falls' for 'protecting the climber in the event of a fall'.

belayer... a person who is belaying a climber.

drop knee... technique requiring twisting your body and a downward turning of the inside knee to increase reach efficiency. (short, i know, but to the point)

Figure 4 - n. An uncommon technique to make long reaches that requires lifting a leg over the opposite arm, putting the body in a position that resembles a "4". Mostly used in ice and mixed climbing.

add...

Figure 9 - n. An uncommon technique to make long reaches that requires lifting a leg over the arm on the same side of the climbers body, putting the body in a position that resembles a "9". Mostly used in ice and mixed climbing.

change...

Flag... SCC refers to flagging as using feet without holds to improove balance and create sideways momentum. maybe this should be included in some way.

put the two definitions of 'jug' into one, they are redundant.

pendulum... add... also a dangerous situation that may occur during a fall, if the top piece of protections is off to one side.

second... add... (n) a person (one or more) who is seconding a climb.

solo... it does not necessarily have to be free. you can also solo climb with protection, or solo aid etc. it only means that you are climbing alone, without a partner.

self arrest - the act of stopping oneself with the axe in the case of a fall while on a snow slope verglas - a thin layer of ice covering rock roof - a 180 degree overhang glissade - a controled slide down a slope

Isn't the term "chickenhead" and not "chickhead"? I've never in my life heard it called the latter, either in popular guidebooks written by climbing greats, or otherwise. I've always heard "chickenhead." Just a thought.

back step: 1. n, a foot position relative to its foothold wherein the climber uses the outside edge of the toe box, instead of the big toe, inside edge, heel, instep, etc. 2. v, to use the outside edge of one's foot on a foothold. 3. v, (the rope) to place a foot or leg between the rope and the rock in such a way as to make entanglement and, subsequently, an upside-down fall more likely. Dude! Watch your right foot! Don't back step the rope!

Too add to the description of "alpine style"... I think Alpinism is definitely a place where you want to cut down weight etc. but that's not, historically at least, what alpine style is. Rather, the definition for alpine style should be along the lines of " Doing a mountain route without pre-placing fixed lines or using pre-supplied camp sites for any stage of the journey Example: Joe Simpson Simon Yates did Suila Grande in alpine style and look where it got them! or: And the British group climbed the new route on Changabang in fine alpine style". Know what I mean?

Too add to the description of "alpine style"... I think Alpinism is definitely a place where you want to cut down weight etc. but that's not, historically at least, what alpine style is. Rather, the definition for alpine style should be along the lines of " Doing a mountain route without pre-placing fixed lines or using pre-supplied camp sites for any stage of the journey Example: Joe Simpson Simon Yates did Suila Grande in alpine style and look where it got them! or: And the British group climbed the new route on Changabang in fine alpine style". Know what I mean?